121744944 has 120 divisors (see below), whose sum is σ = 357341712. Its totient is φ = 40124160.

The previous prime is 121744943. The next prime is 121744999. The reversal of 121744944 is 449447121.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 121744899 and 121744908.

It is not an unprimeable number, because it can be changed into a prime (121744943) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 672534 + ... + 672714.

Almost surely, 2^121744944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121744944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178670856).

121744944 is an abundant number, since it is smaller than the sum of its proper divisors (235596768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121744944 is a wasteful number, since it uses less digits than its factorization.

121744944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377 (or 359 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 121744944 is about 11033.8091337489. The cubic root of 121744944 is about 495.6216981864.

The spelling of 121744944 in words is "one hundred twenty-one million, seven hundred forty-four thousand, nine hundred forty-four".